Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
  • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
  • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
  • B67D7/02—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring liquids other than fuel or lubricants
  • B67D7/0288—Container connection means
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T137/00—Fluid handling
  • Y10T137/8593—Systems
  • Y10T137/86348—Tank with internally extending flow guide, pipe or conduit
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T137/00—Fluid handling
  • Y10T137/8593—Systems
  • Y10T137/86493—Multi-way valve unit
  • Y10T137/86558—Plural noncommunicating flow paths
  • Y10T137/86566—Rotary plug

Definitions

• connection DEVICE for example a device allowing the safe and secure connection of containers of a liquid product to a suction tube by which liquid product is transferred to other use containers or use equipment.
• This type of device is used in industrial facilities, such as hotels, hospitals, commercial kitchens and the like where different cleaning products are filled into individual containers for use by cleaning staff.
• a suction tube is simply pushed into each open top of separate upright containers, such as drums of products.
• the suction tube is connected to the suction side of a dispensing device, such as a pump or the like.
• the suction developed in the tube draws liquid out of the drum because the drum in an appropriate manner communicates with atmosphere to always maintain atmospheric pressure in the drum.
• the suction tube is pulled out and placed into a new, full drum.
• British Patent No. 1054052 describes yet another alternative system which includes a tap for a container.
• the outlet from the container is connected via an aperture to a cylindrical sleeve in which a hollow spigot is rotatably mounted.
• the hollow spigot is also provided with an aperture.
• the spigot has a handle by means of which it can be turned to bring the spigot aperture in and out of line with the outlet aperture in the sleeve.
• An object of an aspect of the invention is to provide an improved closure for discharging the contents of a container in a reliable manner.
• the invention provides a closure for allowing the emptying of the contents of a container, comprising a hollow closure member for the container, the closure member having an inlet for the contents; a rotatable plug mounted within the closure member, the plug having a through-passage for the contents and being movable between a first position in which one end of the through-passage does not register with the inlet and a second position in which it does; a connector for transfer of the contents out of the container, the connector having means to engage the plug of the closure member and a through-passage for registration with the through-passage of the plug; whereby the connector can be engaged and disengaged with the plug and can turn the plug to allow selective opening and closing of the inlet cf the closure member.
• a closure for allowing the emptying of the contents of a container comprises: a hollow closure member for a container, the closure member having an outlet for the contents; a rotatable plug mounted within the closure member, the plug having a first through-passage for the contents with an inlet and an outlet, the plug being rotatable between a first closed position in which the inlet of the through-passage is out of register with the closure member outlet and a second open position in which the inlet is in register with the closure member outlet to permit the contents to pass into the passageway; means for retaining the closure member in a container, the retaining means exposing an outer portion of the rotatable plug, the exposed portion having the outlet of the first through-passage therein; a connector for transfer of the contents out of the container, the connector having means to engage the exposed portion of the plug, the connector having a second through-passage with an inlet in communication with the outlet of the first through- passage; the connector when engaged with the plug can be turned to rotate the plug to
• Figure 1 is an elevational view of a closure according to the invention
• Figure 2 is a plan view of the closure member and plug of Figure l;
• Figure 3 is a schematic sectional view of the closure of Figure 1;
• Figure 4 is an exploded perspective view of the closure of Figure 1;
• Figure 5 is a perspective view of the connector of Figure 1;
• Figure 6 is a section through an alternative embodiment of the closure member;
• Figure 7 is a plan view of the connector for engagement with the closure member of Figure 6;
• Figure 8 is an end view of the connector of Figure 7;
• Figure 9 is a section along the lines A-A of Figure 8.
• Figure 10 is a section along the lines B-B of Figure 7. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
• the closure shown in Figures 1, 2, 3, 4 and 5 comprises a hollow closure member 1 which has an inlet 2.
• the closure member is fitted on the neck of a container of, for example, liquid detergent.
• a rotatable plug 3 is mounted within the closure member 1, the dimensions of the plug 3 and member l being such that a tight fit between the two is created.
• the plug 3 has a through-passage 4 and can be rotated between a first closed position in which the inlet end 32 of the passage 4 does not register with the outlet 2 of the closure member 1 and a second position in which it does.
• a connector 5 is used, the connector 5 having a through-passage 6 which has an inlet 33 registered with an outlet 34 of passage 4 of the plug 3.
• the connector 5 may engage the plug 3 by means, for example, of product spigot 7 which fits into passage 4.
• the spigot 7 engages in passage 4 in a sealing manner by means of, for example, a conventional O-ring 8.
• the engagement of the connector to the plug allows the connector to turn the plug between its open and closed positions, thus opening and closing the closure member.
• the closure member 1 is formed of a generally cylindrical hollow body 10 fitted centrally on the inside of a cap 11 which is secured onto the neck 12 of a container opening.
• the closure member has adjacent its open end 35, a circular peripheral flange 36.
• the flange 36 is secured against the drum 12 by the cap 11.
• the flange may be sandwiched between the cap 11 and a seal 13.
• a polyethylene foam gasket ring seal 13 can be used to create an airtight connection between the cap 11 and the container neck 12.
• the cap may be threaded onto the neck 12 by threads 37 in order to compress the gasket and form a tight seal. It is appreciated that other devices, such as clamps, may be used to secure the cap on the container.
• the inlet 2 of the closure member connects to a pick-up tube 14 which extends into the body of the drum and down to the bottom of the drum to ensure emptying of the contents of the drum.
• the plug 3 is also substantially cylindrical in shape to match the dimensions of the closure member.
• the passage 4 has a step 15 or socket along its length to limit the extent to which the product spigot 7 can be inserted and to receive the enlarged spigot diameter compared to the diameter of the passage 4.
• the plug 3 also has a second through-passage 16 with an inlet 38 in enlarged area 17 or socket and an outlet 39.
• the outlet 39 registers with the inlet 40 in the closure member 1. This passage allows air into the drum as the product is emptied out of the drum.
• the passage 16 has a step 17 to receive the enlarged diameter of the spigot 20 compared to the passage 16.
• the connector 5 has a through-passage 19 for allowing air in, and this passage 19 ends in an air spigot 20 which is inserted in the socket portion on air passage 16 of the plug 3.
• the spigot 20 has a seal, for example a conventional O-ring 21, which may be like that of the product spigot 7.
• Both spigots 7 and 20 are formed with an undercut 22, 22', so that the diameter of a circle defined by the undercuts 22 and 22' is slightly smaller than the diameter defined by the radius of circular opening 24 of the cap 11. With the cap in place, the opening 24 exposes the outer position 42 of the plug. Such exposure provides coupling of the connector with the plug.
• the end of product passage 6 of connector 5 is fitted to a suction tube 23 to allow the contents of the drum to be sucked out in a conventional manner and filled into other containers.
• the top of the cap 11 has a substantially circular aperture 24 for receiving the spigots 7 and 20 of the connector 5.
• the diameter of the aperture 24 is slightly greater than the distance between the outer edges of the undercuts 22, 22' of the spigots.
• the steps 15, 17 of the passages may be relied on to limit the extent to which the spigot can be inserted. In this first position where the spigots are aligned with the enlarged areas 25', the inlet 32 of passage 4 does not register with the outlet 2 in the closure member.
• Rotation of the connector 5 and thereby the plug 3 is limited by the radial lugs 31 abutting up against the upstands 30 on the cap 11.
• Such cooperating devices on the connector and cap define the open position for the plug.
• the keys are formed by a pair of spaced-apart pins 26, which may for example be cylindrical in shape, on the face of the connector 5 which abuts the cap 11.
• Correspondingly shaped recesses 27 are provided in the plug 3.
• Drums containing different products will have the recesses in different positions and connectors for different products have lugs in different positions.
• alternative positions of the recesses are shown in dotted lines. This means that only a connector designed for a specific drum can be connected to that drum, thus preventing incorrect filling of containers.
• a system of two pins and six recesses give fifteen different permutations for connections to be made.
• the connectors and caps can also be color-coded to aid users selecting the correct connectors and drums.
• the spigot 7 for the product has a non-return valve 28 which prevents product escaping from the suction tube when the connector is removed from the drum.
• the passage for air through the connector 5 has a non- return valve 19, to prevent evaporation from the drum. It is apparent from a discussion of the components for the drum closure that assembly can be made in a convenient safe manner.
• the drum may be shipped with the closure member secured to the drum by cap 11. The user then need only couple the corresponding connector 5 to the closure member to complete the closure for dispensing of liquids from the container.
• the closure on sight may be removed and the closure member inserted in the drum where the flange 36 prevents the closure member from dropping to within the drum.
• the seal 13 may remain on the drum opening neck.
• the plug 3 is then placed in the closure member 1 and this part of the assembly completed by screwing on the cap 11 which includes an opening 24 to allow access to the exposed portion 42 of the plug.
• the connector 5 may then be connected to the plug to complete assembly and when desired rotated 90° to align the connections. Hence when the connections are both closed, the drum is sealed. However, when rotated, the product inlet and air inlet connections are made to permit dispensing of liquid from within the drum.
• the pins 26, which are used as part of a key-way system to ensure that the correct connector 5 is coupled to the drum containing the desired liquid, are also useful for engaging the recesses 27 to transmit torque from the connector 5 to the plug 3.
• the pins 26 therefore, in transmitting the torque to the plug, avoid bending of the spigots 7 and 20 which may be more fragile than pins 26.
• the tendency to snap off the spigots 7 and 20 could be a problem by virtue of the undercuts 22 and 22 ' provided in the spigot shafts.
• FIG. 6 An alternative embodiment for the closure is shown in Figures 6 and 7.
• the closure 43 has a cap 44 with threaded interior 45.
• the threads 45 engage corresponding threads on the neck of a container opening.
• the closure member 46 is in the shape of a sleeve having an open upper end 47 and an open lower end 48.
• the sleeve has two stepped cylindrical portions 49 and 50 with indent 51.
• At the open outer end of the closure member 46 is a peripheral flange 52 which rests on the neck of the container in the same manner as the flange 36 is used in the embodiment of Figure 3.
• a plug 53 is inserted in the closure member 46.
• the plug 53 has mating corresponding cylindrical portions 54 and 55 which are stepped at 56 to match the configuration of the closure member.
• the bottom 57 of the plug is open to facilitate molding of the component.
• the plug 53 has the normal through- passages as in the embodiment of Figure 3 and in order for comparison, the same numbers have been used to describe the same aspects of the passages.
• the sleeve 46 has inlet 2 for the liquid which is drawn up through the tube 14.
• the passage 4 has inlet 32 and outlet 34.
• the sleeve has air inlet 40 for the air and the passage 16 has outlet 39 and air inlet 38.
• the cap 44 has an opening 58 to allow access to the upper portion 59 of the plug 53.
• a seal 60 is provided across this exposed portion of the plug 59. In use that seal 60 may be removed before the connector 62 is connected to the closure 43.
• the seal 60 serves to protect the exposed end of the plug during shipping and the like.
• the seal may be a membrane which is readily punctured and/or removed, or may be an adhesive type membrane which has a tab and is peeled off to reveal the exposed end of the plug.
• the exposed end of the plug is recessed relative to the opening 58 in the cap 44.
• the spigot arrangement 63 extends downwardly relative to the bottom portion 64 of the connector 62.
• the spigots 7 and 20 are inserted in the corresponding sockets 74 and 75 of the plug 53.
• An undercut at 65 may be provided which interferes with the edge of the opening 58 in the manner described with respect to undercuts 22, 22' and edge of the aperture 24 of the cap 11 of Figures 1 and 2 to retain the connector 62 in place when the plug has its openings aligned with the openings in the sleeve.
• the connector and/or the closure member may have appropriate stops (not shown) to define at least the open position.
• the respective spigots 7 and 20 are provided for purposes of passage of liquid and air through the respective passages 4 and 16.
• the appropriate pins 26 which are used as key devices to ensure that the proper connector 5 is matched with the corresponding closure member 43.
• suitable one-way check valves are used with respect to passages 4 and 16.
• the check valve for the spigots and hence the one-way valve which controls the flow of liquid out of the drum is provided.
• the valve consists of a ball 66 which is spring-loaded at 67. As liquid is withdrawn from the container, the ball moves against the spring pressure to allow fluid to flow through the spigot.
• the check valve 68 is provided for the air through- passage.
• the ball 69 moves against the spring pressure 70 to allow air to move into the passage 72 which is in communication with the corresponding spigot 20 of the connector 62.
• a hose such as hose 23, is connected to the through-passage which is in communication with the spigot 7 in order to deliver the withdrawn liquid to the desired use position.
• the closures provide for a quick, secure and safe connection and release of a suction tube to a drum.
• the more complex and therefore expensive parts for example the product and air valves, are provided in the reusable connector, rather than the returnable drum.
• any elastomeric components are in the connector, not the drum. This reduces the risk of chemical attack, increases the range of chemicals which can be used and benefits recycling. Furthermore, recycling of the drum is aided since there are no dissimilar materials to be separated.
• the other parts of the connector and drum are molded from polypropylene or polyethylene.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Closures For Containers (AREA)
• Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
• Loading And Unloading Of Fuel Tanks Or Ships (AREA)
• Details Of Rigid Or Semi-Rigid Containers (AREA)
• Paper (AREA)
• Rolls And Other Rotary Bodies (AREA)
• Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Priority Applications (6)

Applications Claiming Priority (2)

Publications (1)

Family

ID=10726967

Family Applications (1)

Country Status (12)

Cited By (4)

Families Citing this family (17)

Citations (6)

Family Cites Families (3)

• 1992
  • 1992-12-21 GB GB929226624A patent/GB9226624D0/en active Pending
• 1993
  • 1993-12-21 US US08/491,840 patent/US5597021A/en not_active Expired - Fee Related
  • 1993-12-21 CA CA002151596A patent/CA2151596C/en not_active Expired - Fee Related
  • 1993-12-21 EP EP94902574A patent/EP0673347B1/de not_active Expired - Lifetime
  • 1993-12-21 WO PCT/CA1993/000550 patent/WO1994014697A1/en not_active Ceased
  • 1993-12-21 ES ES94902574T patent/ES2119155T3/es not_active Expired - Lifetime
  • 1993-12-21 JP JP51463494A patent/JP3513524B2/ja not_active Expired - Fee Related
  • 1993-12-21 BR BR9307707-6A patent/BR9307707A/pt not_active IP Right Cessation
  • 1993-12-21 AU AU56908/94A patent/AU691478B2/en not_active Ceased
  • 1993-12-21 NZ NZ258841A patent/NZ258841A/en unknown
  • 1993-12-21 DE DE69319739T patent/DE69319739T2/de not_active Expired - Fee Related
  • 1993-12-21 AT AT94902574T patent/ATE168356T1/de not_active IP Right Cessation

Patent Citations (6)

Non-Patent Citations (1)

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